ENTOMOLOGY. 571 



cherry trees be sprayed with kerosene einnlsion or whale-oil soap. The false chinch 

 bug {Ni/.'tiitK (iDguxIritus) is reported as injurin-j; turnips, rape, beets, eabbag(>, jiota- 

 toes, and flax. The destrnction of wild species of thennistani familyis recomniended 

 as a means for checking this insect. 



Report of the botanist and entomologist, (1. AV. Heruick ( J//.s.s/.s.s/;>y^/ Sla. 

 Ji'pt. 1901, jyp. Jf>-^S). — 01)servations liave been made on insects injurious to pecans, 

 including Catorala viduata, Oiicidcrfs h'xana, and Seda ftcitula. The author made a 

 study of the mosquitoes of the State, and carried out some experiments in condjating 

 the horn fly. It was found that by spraying the cattle with a 20 or 25 per cent mix- 

 ture of kerosene and ■water nearly all the flies were killed. Even a stronger solution 

 than this can be used without bad effect on the cattle. It w'as found that kerosene 

 and water evaporated too quickly in dry weather where it is not convenient to spray 

 the cattle oftener than twice per week. By spraying with undiluted crude petro- 

 leum it was found that one treatment w-as effective for from 2 to 4 days, and all the 

 flies were killed. Even a 50 per cent solution of crude petroleum in water was 

 equally effective. No liarm was caused to the cattle. 



Notes on injurious insects, E. Fleutiaux {Agr. Prat. Paijs Chaudx, 1 {1901), 

 No. 1, j)p. 110-115). — The seeds of a custard apple {Anona marlcata) were found to 

 be badly infested wdth an insect belonging to the genus Dryocretes. In some cases 

 as many as a dozen specimens of the insect w^ere found in a single seed. The insect 

 was found in all its stages in the same seed, and it is believed that the period of egg 

 laying is interrupted and extends over a considerable period. ^A description is given 

 of the method of egg laying and of the appearance of the various stages of the insect. 



Notes are given on a number of insects which were found injuring coffee grains. 

 The species most abundant and injurious were Cathartus adrcna, Lophocaieres pudJlus, 

 and Siloamisfrnmentarms. A number of other insects, including Chryf^ohothris cli<d- 

 cophana and Agrilus arcolatua, are reported as causing injury to the branches or stems 

 of coffee i^lants. 



Report on economic entomology for 1900, G. H. Carpenter {Reprint from 

 Rpt. Council Roy. IhibUn Soc. 1900, j)p. 93-108, figs. 9). — The author presents descrip- 

 tive biological and economic notes on a number of injurious insects, including carrot 

 fly, pea beetle, Thrlps physop^is, Lecanmm ribis, Hylurgus piniperda, Hyponomcuta 

 cagnagellus, Psylla hnxl, Tinea graneJla, Tenebrio moliior, and Tenebroides mauritanicus. 



Diseases of nursery stock, H. Garman {Kentucky Sta'. Bid. 93, pp 99-111, jds. 

 5). — Notes are given on the fumigation of niirsery stock with hydrocyanic-acid gas. 

 The author gives formulas of materials to he used in generating the gas. It is stated, 

 however, that where trees are excei^tionally large or where only a few trees are 

 infested it is cheaper and more convenient to spray w'ith soap solution or kerosene 

 preparations. Apple trees sprayed for San Jose scale with a 50 per cent mechanical 

 mixture of kerosene and water were not injured in the least, while nearly all the 

 scales were killed. In 2 orchards crown gall was found to have infested about 50 

 per cent of the a|)ple trees. A l)rief description is given of the appearance and posi- 

 tion of the gall. It is recommended that infected trees should lie at once removed 

 and burned. A knot disease of apple trees, similar to black knot of plums, is reported. 

 At the ])ase of the main branches and some times on the trunk itself smooth olive- 

 green warts appear, which increase in size and become rough. These warts may be 

 removed with a knife and the affected parts sprayed with Bordeaux mixture, or the 

 whole tree may be dug out and destroyed. Attention is called to the fact that by 

 double-working Northern Spy apples, as recommended in South Africa and Aus- 

 tralia, a stock may be secured which is reasonably resistant to the attacks of the 

 woolly aphis. Certain nurseries in the State have advertised trees for sale without 

 guaranty, with the knowledge that the nurseries from which they are sold are 

 infested with the San Jose scale. A vigorous protest is entered against such business. 



